diff options
Diffstat (limited to 'src/crypto/internal/bigmod/nat_386.s')
| -rw-r--r-- | src/crypto/internal/bigmod/nat_386.s | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/crypto/internal/bigmod/nat_386.s b/src/crypto/internal/bigmod/nat_386.s new file mode 100644 index 0000000..0637d27 --- /dev/null +++ b/src/crypto/internal/bigmod/nat_386.s @@ -0,0 +1,47 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build !purego + +#include "textflag.h" + +// func addMulVVW1024(z, x *uint, y uint) (c uint) +TEXT ·addMulVVW1024(SB), $0-16 + MOVL $32, BX + JMP addMulVVWx(SB) + +// func addMulVVW1536(z, x *uint, y uint) (c uint) +TEXT ·addMulVVW1536(SB), $0-16 + MOVL $48, BX + JMP addMulVVWx(SB) + +// func addMulVVW2048(z, x *uint, y uint) (c uint) +TEXT ·addMulVVW2048(SB), $0-16 + MOVL $64, BX + JMP addMulVVWx(SB) + +TEXT addMulVVWx(SB), NOFRAME|NOSPLIT, $0 + MOVL z+0(FP), DI + MOVL x+4(FP), SI + MOVL y+8(FP), BP + LEAL (DI)(BX*4), DI + LEAL (SI)(BX*4), SI + NEGL BX // i = -n + MOVL $0, CX // c = 0 + JMP E6 + +L6: MOVL (SI)(BX*4), AX + MULL BP + ADDL CX, AX + ADCL $0, DX + ADDL AX, (DI)(BX*4) + ADCL $0, DX + MOVL DX, CX + ADDL $1, BX // i++ + +E6: CMPL BX, $0 // i < 0 + JL L6 + + MOVL CX, c+12(FP) + RET |